Gaya APA
Keegan, WarrenJ. (1995).
Marketing (2).
New Jersey:
Prentice Hall.
Gaya Chicago
Keegan, WarrenJ.
Marketing.
2
New Jersey:
Prentice Hall,
1995.
Text.
Gaya MLA
Keegan, WarrenJ.
Marketing.
2
New Jersey:
Prentice Hall,
1995.
Text.
Gaya Turabian
Keegan, WarrenJ.
Marketing.
2
New Jersey:
Prentice Hall,
1995.
Print.